These are an extraordinary find! Art Deco ornament made of molded and faceted jet glass with an arc of 9 rhinestones. The glass is faceted above and below the arc.These come in their original wrappers stamped "Made in Czecho-Slovakia" and I believe they date from the 1920s. There are 2 set in loops on the back at either end so that this piece could be sewn on to a hat or garment as an ornament or else hung as a pendant. These are slightly concave and signed "A H" on the back.  These pendants are uncirculated but at 80 years of age, some of the foil and glue holding the stones has deteriorated. We either replace or provide 9 vintage uncirculated Swarovski® rhinestone crystals to replace the old ones. Measures 78x52mm. Sold individually.